val iter_vertex : ( Node.t -> unit ) -> t -> unitval iter_edges_e : ( (G.E.t * bool) -> unit ) -> t -> unitval graph_attributes : t -> Graph.Graphviz.DotAttributes.graph listval default_vertex_attributes : t -> Graph.Graphviz.DotAttributes.vertex listval vertex_name : Node.t -> stringval vertex_attributes : Node.t -> Graph.Graphviz.DotAttributes.vertex listval get_subgraph : Node.t -> Graph.Graphviz.DotAttributes.subgraph optionval default_edge_attributes : 'a -> Graph.Graphviz.DotAttributes.edge listval edge_attributes : (G.E.t * bool) -> Graph.Graphviz.DotAttributes.edge list